The purpose of this circuit found in an old Elektor is to light a lower power lamp when the bigger one burns out. The loads depend on the triacs.
Mouser Electronics counts on its stock with the new TAS6424-Q1 amplifiers from Texas Instruments....
We found this parallel regulator in a 1973 publication. Transistors admit equivalents and the...
This wired intercom circuit was found in a March 1965 Radio Electronics. The circuit uses two...